Abstract
An investigation has been made for the purpose of determining if buried or submerged steel pipe can be supplied adequate cathodic protection against corrosion by the maintenance of some constant open circuit potential. The experimental work consisted in establishing the open circuit potentials required to prevent corrosion of test pipe specimens exposed under a variety of conditions. Identical groups of six specimens each were exposed in four different environments. Test locations were selected to include as wide a variation in soil conditions as possible and one group of specimens was exposed in water. Current was applied to five of the six specimens in each test group with the object of maintaining the open circuit potential of each specimen at a designated value. Measurements were made throughout the test of the open circuit potential and the amount of current supplied to each respective specimen. At the conclusion of the four tests, which were run for some 70-80 days, actual corrosion weight losses fo...
Published Version
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